| 释义 |
castor-oil plant
noun
: a tropical African and Asiatic herb (Ricinus communis) naturalized in all tropical countries and growing as an annual in temperate regions, having large palmate bronze-green leaves, small apetalous flowers, and spiny capsules containing beanlike mottled seeds that yield castor oil and are poisonous because of the presence of ricin — called also palma Christi; see castor bean |